$0.01
per call · USD Coin on Base
First-ever fires — setups that fired for the FIRST TIME in prospective history. Rarest, highest-signal events in the canonical catalog. A setup with state = first_ever has never fired before since it was added. Historical backtest reflects behaviour on ADJACENT setups or partial configurations, not this exact combo — treat as structurally important context, not directional recommendations. Applicable across the CRYPTYX 200+ asset coverage universe (BTC, ETH, SOL, top-cap + long-tail); backtested scope is the 33-asset curated slice.
Endpoint
GET https://cryptyx.ai/api/v1/harness/first-ever1
Calls / 30d
1
Unique payers / 30d
Sep 5
Last called
exact
Payment scheme
Call this service
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";
const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);
const res = await fetchWithPay("https://cryptyx.ai/api/v1/harness/first-ever", {
method: "GET",
});
const data = await res.json();curl -X GET \
"https://cryptyx.ai/api/v1/harness/first-ever?asof_day=" \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"asof_day": "2026-08-21",
"count": 57,
"first_ever": [
{
"asset": "BTC",
"confidence": 1,
"setup_id": "eff_bitcoin_full_stack_efficient_trend_persistence_4_factor_flagship_t5",
"state": "first_ever",
"z_scores": {
"EFF_ER_30D": 1.9,
"EFF_HURST_60D": 2.4,
"TR_MA_DIST_180D": 2.08,
"TR_RET_60D": 2.35
}
}
]
}Payment details
0x0cd2c9724f185a029101b4aeacf3f114415c394fUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
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